Bicycle



FIG. 1 is a front view of a bicycle showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front-left view thereof; and,

FIG. 8 is a front-right view thereof.

The ornamental design for a bicycle, as shown and described.